CN115153360A - Automatic cleaning device and cleaning system - Google Patents

Abstract

The invention discloses an automatic cleaning device, which comprises a machine body, a floor brush assembly, a traveling assembly and a dust collection assembly, wherein the floor brush assembly comprises a brush body and a brush body; the floor brush assembly is used for supporting the machine body and the floor sweeping surface and comprises a first rolling brush and a second rolling brush which are arranged in front and back, the first rolling brush and the second rolling brush are controlled by a locking mechanism and can only rotate in a single direction, and the rotating directions of the first rolling brush and the second rolling brush are opposite. The automatic cleaning device cleans the ground in an alternating forward and backward mode, when the first rolling brush rotates in the process of cleaning the ground, the second rolling brush is locked and wipes the ground, and when the second rolling brush rotates, the first rolling brush is locked and wipes the ground; the invention solves the problems that the traditional electric rolling brush has insufficient pressure under the ground, has poor cleaning effect on stubborn stains, is easy to leak sewage after retreating and the like, and has the advantages of low cost, good cleaning effect, high cleaning efficiency, low energy consumption, multiple cleaning modes and the like.

Description

Automatic cleaning device and cleaning system

Technical Field

The invention relates to the technical field of cleaning, in particular to a surface cleaning device with an automatic cleaning function.

Background

In the prior art, in an automatic cleaning device including a floor sweeping robot and a floor washing robot, an electric side brush is generally used to cooperate with an electric rolling brush to clean the floor, the side brush sweeps garbage into the bottom of a main body of the automatic cleaning device, the electric rolling brush rotates at a high speed, and surface bristles of the electric rolling brush pump the floor to lift the garbage on the floor and suck the garbage into the main body of the automatic cleaning device through a dust suction port.

With the development of the technology, a double-roller brush automatic cleaning device also appears, and in the chinese patent application 202010501235.4, a cleaning device is disclosed, which comprises: casing, round brush subassembly, drum subassembly and dirt box, the bottom of casing has first opening and second opening on the advancing direction of casing, first opening is located the bottom front end of casing, the second opening is located the bottom rear end of casing, the round brush subassembly includes round brush and first driver, the round brush is located first opening part, first driver drive the round brush rotates, the brush hair of sweeping the floor has on the round brush, drum subassembly includes cylinder and second driver, the cylinder is located the second opening part, the second driver drive the cylinder rotates, the surface of cylinder is equipped with the cleaning member, the dirt box set up in the casing, just the entry of dirt box with first opening intercommunication is used for collecting the object that the round brush subassembly cleaned.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

no matter the automatic cleaning device is provided with a single rolling brush or double rolling brushes, in order to achieve the cleaning effect, the rotating speed of the electric rolling brush is usually high, in order to prevent the machine body from being driven by the electric rolling brush rotating at a high speed to move too fast, so that the control is difficult and the cleaning effect is influenced, the machine body is usually supported by using additional auxiliary wheels or universal wheels, the electric rolling brush only contacts the ground by surface bristles and does not support the main weight of the machine body, so that the downward pressure of the electric rolling brush on the ground is insufficient, and the cleaning effect on stubborn stains on the ground is poor.

In addition, the automatic cleaning device provided with the traditional electric rolling brush is single in cleaning mode and is generally only suitable for a forward one-way cleaning mode, when backing, the rolling brush is insufficient in pressure under the ground, the surface of the brush body is not tightly attached to the ground, water leakage, dust leakage and other phenomena are easy to occur, when stubborn stains are on the ground, the cleaning device cannot be used for cleaning in a short distance in a reciprocating mode, and therefore the cleaning efficiency is low.

Disclosure of Invention

In order to solve at least one of the above technical problems, a primary object of the present invention is to provide an automatic cleaning device, which is used to solve the problems of insufficient pressure of an electric rolling brush of the automatic cleaning device under the ground, poor cleaning effect on stubborn stains, easy dust leakage, water leakage, low cleaning efficiency, etc. in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided an automatic cleaning apparatus including a body, a floor brush assembly, a traveling assembly, a dust suction assembly;

the floor brush assembly is used for supporting the machine body and wiping the ground, and comprises a first rolling brush and a second rolling brush which are arranged in front and at the back, the first rolling brush and the second rolling brush are controlled by a locking mechanism and can only rotate in a single direction, the rotating directions of the first rolling brush and the second rolling brush are opposite, the rotating direction of the first rolling brush on the left side is in an anticlockwise direction, and the rotating direction of the second rolling brush on the right side is in a clockwise direction when viewed from the side of the machine body;

the automatic cleaning device cleans the ground in an alternating forward and backward mode, when the first rolling brush rotates in the process of cleaning the ground, the second rolling brush locks and wipes the ground, and when the second rolling brush rotates, the first rolling brush locks and wipes the ground.

The automatic cleaning device according to one of the technical solutions (embodiments) of the present invention has the following advantages or beneficial effects:

different from the prior art that the dust is raised by depending on the high-speed rotation of the electric rolling brush, when the automatic cleaning device cleans the ground, the rolling brush positioned on the side of the advancing direction does not play a role in sweeping and raising the dust, and does not need to rotate at high speed, while the rolling brush positioned on the opposite side of the advancing direction is in a locking and stopping state and rubs with the ground to play a role in sweeping and collecting the garbage, so that an auxiliary supporting wheel in the prior art can be cancelled, the main weight of the machine body is supported by the two rolling brushes in the ground brush assembly, the rolling brushes can keep larger downward pressure on the ground, so that the surface of the rolling brush in the locking state has larger friction force with the ground, a better cleaning effect can be achieved on stubborn stains on the ground, and the phenomena of water leakage and dust leakage are not easy to occur due to the tight fit of the rolling brushes with the ground;

because the rolling brush does not need to rotate at a high speed, the energy consumption can be reduced, the attached sewage and dirt can be prevented from being thrown out forwards by the rolling brush rotating at a high speed, a water blocking cover and an anti-collision plate can be eliminated, and the soft rolling brush has an anti-collision effect.

Because the floor brush assembly is provided with the two rolling brushes which can rotate in one direction and lock opposite directions, the machine body can wipe and sweep the ground no matter the machine body moves forwards or backwards, and can collect and limit garbage and sewage between the two rolling brushes, the machine body can be cleaned in an alternative mode of moving forwards and backwards, the machine body does not need to turn around or turn, the machine body can be cleaned in a fixed-point reciprocating manner at a stubborn stain position, and the cleaning efficiency is higher;

according to the automatic cleaning device provided by the embodiment of the invention, various cleaning modes such as dry wet absorption mopping, first absorption mopping, integrated suction mopping and fixed-point repeated cleaning can be realized, and the automatic cleaning device has the advantages of simple structure, low cost, good cleaning effect, high cleaning efficiency, low power consumption and the like.

Further, according to some embodiments of the present invention, when the machine body travels, one of the first and second rolling brushes on the traveling direction side is passively rotated by a frictional force between a surface of the rolling brush and the ground.

According to some embodiments of the present invention, when the machine body travels, one of the first rolling brush and the second rolling brush located on the side of the direction of travel is driven to rotate by a motor, and the rotation speed of the one of the first rolling brush and the second rolling brush is adapted to the travel speed of the machine body.

According to some embodiments of the invention, a third rolling brush is further included between the first rolling brush and the second rolling brush, and the third rolling brush is a power rolling brush.

According to some embodiments of the present invention, the dust collection assembly includes a wind guide groove formed at the bottom of the machine body, the wind guide groove is located between the first rolling brush and the second rolling brush, a dust collection port is formed in the middle of the wind guide groove, at least one of the front and rear edges of the wind guide groove is provided with a throttle section, and the airflow enters the wind guide groove through the throttle section and then enters the dust collection port.

According to some embodiments of the present invention, the apparatus further comprises a liquid container and a liquid delivery device, wherein the liquid container delivers liquid to at least one of the first and second rolling brushes through the liquid delivery device.

According to some embodiments of the present invention, the automatic cleaning device has a dry wet mopping mode in which the liquid delivery device delivers the liquid only to the second rolling brush, and the automatic cleaning device retreats by a distance not exceeding a distance between the first rolling brush and the second rolling brush during back and forth reciprocating cleaning.

According to some embodiments of the present invention, the automatic cleaning apparatus has an energy saving cleaning mode in which a dust suction motor of the dust suction assembly is turned off or intermittently turned on.

According to some embodiments of the invention, at least one of the first and second rolling brushes is composed of two short rolling brushes arranged axially.

Some embodiments according to the present invention include an automatic cleaning device and a docking station as described above.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a perspective view of an automatic cleaning device according to an embodiment of the present invention;

FIG. 2 is a side view of the robotic cleaning device shown in FIG. 1;

FIG. 3 is a bottom view of the automatic cleaning apparatus shown in FIG. 1;

FIG. 4 is a perspective view of an automatic cleaning apparatus according to another embodiment of the present invention;

FIG. 5 is a perspective view of an automatic cleaning apparatus according to still another embodiment of the present invention;

fig. 6 is a perspective view of an automatic cleaning apparatus according to still another embodiment of the present invention.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1, 2 and 3, the automatic cleaning device according to one embodiment of the present invention comprises a machine body 1, a floor brush assembly, a traveling assembly and a dust suction assembly;

the scrubbing brush subassembly is equipped with the opening including the first round brush 21, the second round brush 22 that set up around, both ends around organism 1, and first round brush 21 is located the opening of organism 1 front end, and second round brush 22 is located the opening of organism 1 rear end.

The first and second rolling brushes 21, 22 are controlled by a locking mechanism, and can only rotate in one direction, wherein, optionally, the locking mechanism may be a one-way device such as a one-way bearing or a ratchet wheel arranged at the shaft end of the first and second rolling brushes 21, 22, for example, in this embodiment, the one-way bearing is preferred.

As shown in fig. 2, the first and second rolling brushes have opposite rotation directions, and when viewed from the side of the machine body 1, the first rolling brush 21 located on the left side rotates in the direction indicated by the arrow a, i.e., counterclockwise, and the second rolling brush 22 located on the right side rotates in the direction indicated by the arrow b, i.e., clockwise.

The traveling assembly comprises two traveling wheels 3 positioned on the left side and the right side of the machine body 1, the traveling wheels 3 are driven by a motor, in the process of cleaning the ground, the traveling wheels 3 elastically press against the ground, the machine body 1 is pushed to move forwards and backwards on the ground under the control of the automatic control assembly in the machine body 1, and when the machine body 1 needs to turn, the left traveling wheel 3 and the right traveling wheel 3 rotate at a differential speed or the two traveling wheels 3 respectively rotate in opposite directions.

In the process of cleaning the ground, the first rolling brush 21 and the second rolling brush 22 are in contact with the ground and support most of the weight of the machine body 1, when the machine body 1 moves forward, the one-way bearing at the shaft end of the first rolling brush 21 positioned on the side of the advancing direction is in an overrunning state, the first rolling brush 21 passively rotates by using the friction force between the surface of the first rolling brush and the ground, meanwhile, the one-way bearing at the shaft end of the second rolling brush 22 positioned on the opposite side of the advancing direction is in a non-return state, the second rolling brush 22 stops rotating, and the surface of the stopped second rolling brush 22 rubs with the ground and wipes the ground; when the machine body 1 retreats, the one-way bearing at the shaft end of the second rolling brush 22 positioned at the side of the advancing direction is in an overrunning state, the second rolling brush 22 passively rotates by utilizing the friction force between the surface of the second rolling brush and the ground, meanwhile, the one-way bearing at the shaft end of the first rolling brush 21 positioned at the opposite side of the advancing direction is in a non-return state, the first rolling brush 21 stops rotating, and the surface of the stopped first rolling brush 21 rubs with the ground and wipes the ground.

The locking mechanism adopts a one-way bearing and can adopt a standard component, and the locking mechanism has the advantages of low cost, simplicity, reliability, no need of additional control and the like.

The first rolling brush 21 and the second rolling brush 22 are preferably cylindrical rolling brushes, the surface material of the first rolling brush 21 and the second rolling brush 22 may be any material suitable for wiping the surface to be cleaned, such as flannelette, collodion, sponge, soft rubber, rubber and plastic, disposable paper wiping, and the like, and optionally, the first rolling brush 21 and the second rolling brush 22 may also be crawler-type rolling brushes.

In the above embodiment, since the first rolling brush 21 and the second rolling brush 22 are passively rotated by using the friction force between the surface of the rolling brush and the ground, a rolling brush motor is eliminated, so that the cost can be reduced, the power consumption can be reduced, the noise can be reduced, the structure can be simplified, and the available space in the machine body 1 can be increased.

Because the main weight of the machine body is supported by the first rolling brush 21 and the second rolling brush 22, the rolling brushes can keep large downward pressure on the ground, so that large friction force is generated between the surfaces of the rolling brushes in a locking state and the ground, a good cleaning effect can be achieved on stubborn stains on the ground, and the phenomena of water leakage and dust leakage are not easy to occur due to the fact that the rolling brushes are tightly attached to the ground.

Because the round brush does not need high-speed rotation, can also reduce the energy consumption, can prevent that high-speed rotatory round brush from throwing away adnexed sewage and foul to the place ahead, also can cancel simultaneously and keep off water cover and crashproof board, play the anticollision effect by mild round brush to detect the collision of round brush and barrier by the sensor in the organism, control organism keeps away the barrier.

According to the automatic cleaning device provided by the embodiment of the invention, the ground is cleaned in a forward and backward alternate advancing mode, the first rolling brush 21 and the second rolling brush 22 alternately wipe the floor-sweeping surface in a rotating and stopping mode, garbage and sewage are collected between the two rolling brushes, and then the garbage and the sewage are sucked into a dust box (a sewage tank) in the machine body 1 by the dust collection assembly.

It should be noted that the manner of alternately advancing and retreating refers to a normal cleaning process, and the automatic cleaning device can also continuously advance or retreat when heading to a designated area, avoiding obstacles, turning, and the like.

Because the automatic cleaning device is provided with the two rolling brushes which can rotate in one direction and lock opposite directions, the automatic cleaning device can wipe and sweep the ground no matter the automatic cleaning device moves forwards or backwards, collect and limit garbage and sewage between the two rolling brushes, can clean the stubborn stains in a fixed-point reciprocating manner without turning around or turning a corner, and has higher cleaning efficiency; in addition, various cleaning modes such as dry wet absorption mopping, first absorption and then mopping, integrated absorption and mopping, fixed-point repeated cleaning and the like can be realized.

As shown in fig. 3, in some embodiments according to the present invention, four cliff sensors 101 are further included under both front and rear ends of the machine body 1 to prevent the machine body 1 from falling from a height.

As shown in fig. 4, according to some embodiments of the present invention, a third rolling brush 23 is further included below the machine body 1 between the first rolling brush 21 and the second rolling brush 22, the third rolling brush 23 is an electric rolling brush, the third rolling brush 23 is suspended in a dust suction chamber formed at the bottom of the machine body 1, and surface bristles of the third rolling brush 23 contact with the ground, and during the high-speed rotation of the third rolling brush 23, the surface bristles of the third rolling brush hit the ground, so that the ground sewage and garbage are hoisted into the dust suction chamber and then sucked into a dust box (a sewage tank) inside the machine body.

Because the main weight of the machine body 1 is supported by the first rolling brush 21 and the second rolling brush 22, the first rolling brush 21 and the second rolling brush 22 erase stubborn dirt on the ground and collect garbage and sewage in the alternate rotation and stop process, and the third rolling brush 23 can hoist the garbage and sewage collected by the first rolling brush 21 and the second rolling brush 22 into the dust collection cavity, so that the dust collection effect is enhanced.

As shown in fig. 5, according to some embodiments of the present invention, the first rolling brush 21 and the second rolling brush 22 may also be electric rolling brushes, and during the floor cleaning process, the first rolling brush 21 and the second rolling brush 22 contact the floor and support all or most of the weight of the machine body 1, and the first rolling brush 21 and the second rolling brush 22 rotate in opposite directions and are controlled by a locking mechanism, and only rotate in one direction, and optionally, the locking mechanism may be a position ring of the motor itself, such as a mechanical brake device or a servo motor, and may also be an additional device, such as a one-way bearing, a ratchet wheel, and the like. Taking the locking mechanism as an example, preferably, the locking mechanism is a one-way bearing, when the machine body 1 advances under the push of the advancing wheel 3, the one-way bearing at the shaft end of the first rolling brush 21 on the advancing direction side is in an overrunning state, the first rolling brush 21 is driven by the motor to rotate, the rotating speed of the first rolling brush 21 adapts to the advancing speed of the machine body 1, the motor of the second rolling brush 22 on the opposite side of the advancing direction stops rotating, the one-way bearing at the shaft end of the second rolling brush 22 is in a non-return state, the one-way bearing in the non-return state prevents the second rolling brush 22 which stops rotating from reversing, and the surface of the second rolling brush 22 which stops rotating rubs with the ground and wipes the ground; when the machine body 1 retreats under the push of the traveling wheel 3, the one-way bearing at the shaft end of the second rolling brush 22 positioned on the traveling direction side is in an overrunning state, the second rolling brush 22 rotates under the driving of the motor, the rotating speed of the second rolling brush 22 adapts to the retreating speed of the machine body 1, meanwhile, the motor of the first rolling brush 21 positioned on the opposite side of the traveling direction stops rotating, the one-way bearing at the shaft end of the first rolling brush 21 is in a non-return state, the non-return one-way bearing prevents the first rolling brush 21 which stops rotating from reversing, and the surface of the first rolling brush 21 which stops rotating rubs with the ground and wipes the ground.

Because the round brush does not need high-speed rotation, although adopted electronic round brush, the electronic round brush of low-speed rotation and adaptation organism 1 speed of marcing is less to the influence of marcing of organism 1, still can be used for supporting organism 1 weight, makes the round brush surface keep great holding down force to ground, reaches better clean effect to the resistance of the broach or the wiping strip contact that the round brush surface and organism 1 set up can be overcome to low-speed pivoted electronic round brush, prevents that the round brush from rotating the jamming.

As shown in fig. 5, in some embodiments of the present invention, the dust suction assembly includes a wind guide groove 110 formed at the bottom of the machine body 1, the wind guide groove 110 is located between the first rolling brush 21 and the second rolling brush 22, a dust suction opening 111 is formed in the middle of the wind guide groove 110, at least one edge of the front and rear edges of the wind guide groove 110 is provided with a throttle section 112, the throttle section 112 is formed by a gap between the bottom surface of the machine body 1 and the ground, preferably, the throttle section 112 is disposed at the front and rear edges of the wind guide groove 110, or only one edge of the wind guide groove may be provided with the throttle section 112, and the other edge is provided with a wiping strip made of a flexible material, and the wiping strip may play a role of shielding wind and pushing dust to wipe the ground.

Because the air guide groove 110 is formed at the bottom of the machine body 1, the structure is simple, the distance from the ground is closer, the throttling section 112 formed between the bottom surface of the machine body 1 and the ground can accelerate the airflow, the accelerated airflow can have a scouring effect on the ground, and in one stroke of the machine body, ground dirt and sewage can undergo twice airflow scouring, so that a better cleaning effect can be achieved.

According to some embodiments of the present invention, a liquid container and a liquid conveying device are further disposed in the machine body 1, the liquid container includes a clean water tank and a dirty water tank, and the liquid conveying device conveys the cleaning liquid in the clean water tank to at least one of the first rolling brush 21 and the second rolling brush 22.

Due to the liquid container and the liquid conveying device, the automatic cleaning device can realize dry and wet functions and integrates suction and dragging.

According to some embodiments of the present invention, the automatic cleaning device has a dry wet mopping mode, the liquid delivery device preferably delivers the cleaning liquid only to the second rolling brush 22, and the machine body 1 is cleaned back and forth in a single reciprocating stroke, wherein the distance of the back-off does not exceed the distance between the first rolling brush 21 and the second rolling brush 22.

Because the liquid conveying device preferably only conveys liquid to the second rolling brush 22 positioned at the rear, the surface of the first rolling brush 21 can be kept dry, when the machine body 1 moves forwards, the first rolling brush 21 positioned at the front and kept dry can not wet garbage such as dust on the ground, hair and the like, the garbage is not easy to adhere to the ground and the surface of the rolling brush, and is easier to be sucked into the machine body by the dust suction assembly, so that the dry suction function is realized; the surface of the second rolling brush 22 positioned at the rear is wetted by the cleaning liquid and is in a locked state to rub against the ground, and the second rolling brush 22 wets the ground and wipes off dirt on the ground, so that the wet mopping function is realized; when the automatic cleaning device retreats, since the retreating distance does not exceed the distance between the first rolling brush 21 and the second rolling brush 22, the first rolling brush 21 does not contact the ground wetted by the second rolling brush 22, and the first rolling brush 21 can be kept dry, thereby realizing a continuous dry wet-absorption mopping mode.

According to some embodiments of the present invention, when the automatic cleaning device is set by a user or a sensor detects that the dust content in the suction airflow is low, the automatic cleaning device enters an energy-saving cleaning mode, in which a dust suction motor in the dust suction assembly is turned off, and only the floor brush assembly is used for wiping the floor, and optionally, the dust suction motor can also be turned on intermittently to suck the garbage collected by the floor brush assembly during the turning-off of the dust suction motor into the machine body.

Because the ground brush component can collect and limit garbage between the two rolling brushes, the automatic cleaning device can still realize the function of cleaning the ground under the condition that the dust collection motor is closed, and meanwhile, because the dust collection motor of the main power consumption part is closed or intermittently opened, the power consumption can be effectively reduced, the endurance time is increased, and under the condition that the dust collection motor is closed, the working noise of the automatic cleaning device can also be effectively reduced.

According to some embodiments of the present invention, the automatic cleaning device further has a first suction and then mopping mode, in which the liquid delivery device of the automatic cleaning device temporarily does not deliver liquid to the roller brush, so that the roller brush is kept dry, the floor is cleaned by using a dry wiping and dry suction mode, when the dust content of the airflow is detected to be low or all the area to be cleaned is cleaned, the liquid delivery device starts to deliver liquid to the roller brush, and the automatic cleaning device adopts a conventional suction and mopping integrated mode or an energy-saving mode to clean the area to be cleaned again.

Under the condition that the dust content on the ground is higher or the hair is more, the dry wiping dry absorption can effectively prevent the dust and the hair from adhering to the ground and the rolling brush after being wetted to influence the cleaning effect, and the wet wiping is carried out after the dry wiping dry absorption, so that the better cleaning effect can be achieved.

According to some embodiments of the invention, the automatic cleaning device has a fixed-point repeated cleaning mode, in the fixed-point repeated cleaning mode, when a sensor of the automatic cleaning device detects that residual stubborn dirt exists on the ground, the automatic cleaning device can perform short-distance back and forth cleaning in a stubborn dirt area under the control of the automatic control assembly until the stubborn dirt is removed, and compared with a traditional one-time cleaning mode of the sweeping robot, the fixed-point repeated cleaning mode has a better cleaning effect and higher cleaning efficiency.

According to some embodiments of the present invention, at least one of the first and second rolling brushes 21, 22 is composed of two short rolling brushes arranged axially. Preferably, as shown in fig. 6, the first roll brush 21 is composed of two short roll brushes 211, 212 axially aligned, and the second roll brush 22 is composed of two short roll brushes 221, 222 axially aligned.

Because two short round brush axial arrangement, the round brush erection bracing can set up between two short round brushes, can realize the welt completely and clean, and is further, four short round brushes can be the electric drive round brush, pull organism 1 through two short round brushes synchronous rotations that lie in the direction of travel and advance or retreat, through differential rotation realization turn between a plurality of short round brushes, turn around, can cancel solitary subassembly of marcing from this, realize the subassembly function of marcing by the scrubbing brush subassembly.

According to some embodiments of the invention, the cleaning system comprises an automatic cleaning device according to the embodiments of the invention and a stop station, and the stop station can comprise an automatic charging device, a water supplementing and draining device, a rolling brush cleaning device and a rolling brush drying device.

The automatic charging device is used for charging the automatic cleaning device; the water replenishing and draining device is used for injecting clear water into the automatic cleaning device and draining sewage;

the round brush cleaning device comprises a cleaning tank, a cleaning roller and a nozzle, wherein the cleaning roller and the nozzle are respectively corresponding to a first round brush and a second round brush, comb teeth and/or brush bristles are arranged on the surface of the cleaning roller, the cleaning roller is driven by a motor, the first round brush is driven by friction force, the second round brush is rotated, when the comb teeth and/or the brush bristles clear rubbish on the surface of the round brush, the nozzle sprays water on the surface of the first round brush and the surface of the second round brush, after the cleaning is completed, the nozzle stops spraying water, the cleaning roller continues to rotate, water on the surface of the round brush is extruded, the cleaning roller falls into the cleaning tank, and then the round brush is dried by a round brush drying device.

Alternatively, the cleaning tank may not include a nozzle, and the liquid is supplied to the surface of the roller brush by a liquid supply device provided in the automatic cleaning device during cleaning of the roller brush.

In the above embodiments according to the present invention, only some exemplary embodiments are simply described. As those skilled in the art will realize, the described embodiments may be modified in various different ways, all without necessarily requiring or implying an exhaustive enumeration of all embodiments, without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive, and all changes and modifications that come within the meaning and range of equivalency of the claims are intended to be embraced therein.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "side", "end", "top", "bottom", "center", "left", "right", "clockwise", "counterclockwise", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Claims (10)

1. An automatic cleaning device, characterized in that: comprises a machine body, a floor brush component, a traveling component and a dust collection component;

the floor brush assembly is used for supporting the machine body and wiping the ground, and comprises a first rolling brush and a second rolling brush which are arranged in front and at the back, the first rolling brush and the second rolling brush are controlled by a locking mechanism and can only rotate in a single direction, the rotating directions of the first rolling brush and the second rolling brush are opposite, the rotating direction of the first rolling brush on the left side is in an anticlockwise direction, and the rotating direction of the second rolling brush on the right side is in a clockwise direction when viewed from the side of the machine body;

the automatic cleaning device cleans the ground in an alternating forward and backward mode, when the first rolling brush rotates in the process of cleaning the ground, the second rolling brush locks and wipes the ground, and when the second rolling brush rotates, the first rolling brush locks and wipes the ground.

2. The automatic cleaning device according to claim 1, wherein: when the machine body moves forward, one rolling brush located on the side of the moving direction in the first rolling brush and the second rolling brush rotates passively by using the friction force between the surface of the rolling brush and the ground.

3. The automatic cleaning device according to claim 1, wherein: when the machine body moves forward, one rolling brush located on the side of the moving direction in the first rolling brush and the second rolling brush is driven to rotate by a motor, and the rotating speed of the rolling brush is adapted to the moving speed of the machine body.

4. The automatic cleaning device according to claim 1, wherein: and a third rolling brush is arranged between the first rolling brush and the second rolling brush, and the third rolling brush is an electric rolling brush.

5. The automatic cleaning device according to claim 1, wherein: the dust collection assembly comprises an air guide groove formed in the bottom of the machine body, the air guide groove is located between the first rolling brush and the second rolling brush, a dust collection opening is formed in the middle of the air guide groove, a throttling section is arranged on at least one edge of the front edge and the rear edge of the air guide groove, and air flow enters the air guide groove through the throttling section and then enters the dust collection opening.

6. The automatic cleaning device according to claim 1, wherein: the liquid container is used for conveying liquid to at least one of the first rolling brush and the second rolling brush through the liquid conveying device.

7. The automatic cleaning device according to claim 6, wherein: the automatic cleaning device is provided with a dry moisture absorption mopping mode, in the dry moisture absorption mopping mode, the liquid conveying device only conveys liquid to the second rolling brush, and in the front and back reciprocating cleaning process of the automatic cleaning device, the backward distance does not exceed the distance between the first rolling brush and the second rolling brush.

8. The automatic cleaning device according to claim 1, wherein: the automatic cleaning apparatus has an energy-saving cleaning mode in which a dust suction motor of the dust suction assembly is turned off or intermittently turned on.

9. The automatic cleaning device according to claim 1, wherein: at least one of the first rolling brush and the second rolling brush is composed of two short rolling brushes which are axially arranged.

10. A cleaning system, characterized by: comprising an automatic cleaning device and a docking station according to claims 1 to 9.

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